Question

我在这样的文件中有多个输入：

<form action="card_generate.php">
<input type="text" name="tZero">
        <input type="text" name="tOne">
        <input type="text" name="tTwo">
        <input type="text" name="tThree">
</form>

在文件card_generate.php中，这必须进入我写过的数组：

$tabs = array($_POST["tZero"], $_POST["tOne"], $_POST["tTwo"], $_POST["tThree"]);

有没有办法可以通过循环或其他方法将这些值放在数组中，而不是逐个将每个值放在一个数组中，可以有多于4个值的值。

Answer 1

使用输入名称数组

<form action="card_generate.php">
<input type="text" name="t[]">
        <input type="text" name="t[]">
        <input type="text" name="t[]">
        <input type="text" name="t[]">
</form>

而且，你会得到帖子，

print_r($_POST['t']);

Answer 2

您还可以使用示例中显示的foreach循环：

<强> HTML

<form method="POST">
<input type="text" name="tZero">
        <input type="text" name="tOne">
        <input type="text" name="tTwo">
        <input type="text" name="tThree">
<input type="submit" name="">
</form>

<强> PHP

<?php

if ( isset($_POST) ) {
    foreach ($_POST as $key => $value) {
        echo "Name: $key, value: $value";
        echo "<br>";
    }
}

?>

<强> RESULT

Name: tZero, value: first 
Name: tOne, value: hi
Name: tTwo, value: firthfds
Name: tThree, value: fourth value

P.S。不要忘记method="POST"中的<form>。

Answer 3

您是否有理由说RuntimeError: can't modify frozen Array # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/actionpack-5.1.0/lib/action_dispatch/middleware/stack.rb:74:in `insert' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/actionpack-5.1.0/lib/action_dispatch/middleware/stack.rb:74:in `insert' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/actionpack-5.1.0/lib/action_dispatch/middleware/stack.rb:81:in `insert_after' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/request_store-1.3.2/lib/request_store/railtie.rb:5:in `block in <class:Railtie>' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/railties-5.1.0/lib/rails/initializable.rb:30:in `instance_exec' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/railties-5.1.0/lib/rails/initializable.rb:30:in `run' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/railties-5.1.0/lib/rails/initializable.rb:59:in `block in run_initializers' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/railties-5.1.0/lib/rails/initializable.rb:58:in `run_initializers' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/railties-5.1.0/lib/rails/application.rb:353:in `initialize!' # ./config/environment.rb:5:in `<top (required)>' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:292:in `require' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:292:in `block in require' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:258:in `load_dependency' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:292:in `require' # ./spec/rails_helper.rb:12:in `<top (required)>' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:292:in `require' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:292:in `block in require' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:258:in `load_dependency' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:292:in `require' # ./spec/controllers/admin/capacity_charges_controller_spec.rb:3:in `<top (required)>' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:286:in `load' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:286:in `block in load' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:258:in `load_dependency' # /Users/jeremynagel/.rvm/gems/ruby-2.3.1@Rails4.2_EnergyLink/gems/activesupport-5.1.0/lib/active_support/dependencies.rb:286:in `load'？

Answer 4

您可以使用array_push：http://php.net/manual/de/function.array-push.php

你可以这样循环：

for($i = 0; $i < 10; $i++) {
    if(isset($_POST["t" . $i])) {
        array_push($array, $_POST["t" . $i]);
    }
}

通过循环将多个元素放入数组中

4 个答案: